The GAPS Programme at TNG. LXXX. Characterisation of the 400 Myr old multi-planet system K2-233

astro-ph.EP

Submitted: 2026-10-07

Updated: 2026-10-09

Comments: 20 pages, 14 figures, 5 tables, A&A accepted

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Sources

• The GAPS programme at TNG LXXI. A sub-Neptune suitable for atmospheric characterization in a multiplanet and mutually inclined system orbiting the bright K dwarf TOI-5789 (HIP 99452)
• The GAPS Programme at TNG. LXXIII. Confirmation of the hot sub-Neptune TOI-4602 b (HD 25295 b), a key target for future atmospheric characterization
• The GAPS Programme at the TNG: LXX. TOI-5734b: A hot sub-Neptune orbiting a relatively young K dwarf with an Earth-like density
• The HARPS search for southern extra-solar planets. XXXI. Magnetic activity cycles in solar-type stars: statistics and impact on precise radial velocities
• TESS Input Catalog versions 8.1 and 8.2: Phantoms in the 8.0 Catalog and How to Handle Them
• Toward a 2D H I Map of the Local Interstellar Medium

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